News

The 7.1-magnitude earthquake in Mexico caused significant infrastructure damage.

Image source: BGR

Asphalt News September 21, 2017
The magnitude-7.1 earthquake that hit central Mexico this past Tuesday afternoon has left more than 200 people are dead. It is marked as the worst natural seismic event in the area in more than 30 years.   Geoffrey Abers, a geophysicist at Cornell University who uses the tools of earthquake...
Research suggests new asphalt roads cannot handle 21st century climate
Asphalt News September 20, 2017
A study published recently in the journal Nature Climate Change suggests that the materials being used to build asphalt roads is not up to the test when it comes to withstanding the extremes in climate change that have presently being experienced and are expected to be experienced as the century...
Asphalt News August 21, 2017
On Aug. 18, 2017, the editorial staff of Roads & Bridges magazine visited the $2.3 billion I-4 Ultimate project in Orlando, Fla. The 21-mile project site is presently at the midpoint of its construction, and the scale was enormous. We brought our 360 camera along for the trip.
Asphalt Products March 27, 2017
Liquid Road is a high-performance mineral- and fiber-reinforced asphalt emulsion blended with polymers and special surfactants for adhesion, flexibility and durability. It replenishes the binder that is lost through oxidation and weathering, while it provides a slip-resistant durable surface...

Paving crews worked the inside lanes at night utilizing the notched wedge joint on the shoulder lane.

Asphalt Article February 09, 2017
State DOTs have a primary responsibility to maximize the return on investment from the considerable public funds spent to build and maintain their highways and interstates.   To manage the long-term costs of its aging inventory of concrete pavements, the Washington State Department of...
Asphalt Article February 09, 2017
Asphalt pavements are inherently sustainable. A fully reusable material, more than 99% of asphalt pavement removed during maintenance and repair activities can be reclaimed for use in new pavements. During the 2015 construction season, a total of 78 million tons of asphalt pavement was reclaimed...

Image source: Daily North Shore

Asphalt News December 07, 2016
The Lake County (Ill.) Division of Transportation has been working with the Village of Deerfield and the City of Highland Park to reconstruct Deerfield Road in Deerfield and resurface Deerfield Road in Highland Park.   The project began last February and the roadwork in Deerfield is nearly complete...
Asphalt Products October 26, 2016
GSSI's PaveScan RDM asphalt density assessment tool provides accurate real-time measurements to ensure pavement life and quality. The system is ideal for uncovering problems that occur during the paving process, including poor uniformity and significant variations in density. PaveScan automatically...
Asphalt News October 07, 2016
With more than 125,000 people in the technical workforce trained and 120 live courses, TC3’s training can impact you and your organization. Both of these courses are available at no cost and are a part of the newly launched Maintenance Training Series.   Base and Subbase Stabilization and Repair...
Asphalt Products August 02, 2016
The Volvo DD25B double-drum compactor is powered by a 3-cylinder engine that meets strict Tier 4 Final emissions regulations without the need for an after-treatment system. The new DD25B, designed with the Volvo D1.7A Tier 4 Final 25-hp engine, reduces particulate matter and nitrogen oxides (NOx)....
Asphalt Products August 02, 2016
Powered by a Volvo 235 hp Tier 4i-compliant D8 engine, the tracked P7110 and wheeled P7170 are more fuel efficient than previous models, with decreased engine emissions. The engine’s diesel particulate filter (DPF) and active, semi-automatic regeneration process work without interruption,...
Asphalt News August 01, 2016
The National Asphalt Pavement Association (NAPA) recently announced the winners of its 2015 Asphalt Operations Safety Innovation Award, as well as the winners and finalists of its Operational Excellence Awards. Both series of special recognition were made at a special ceremony during the...
Asphalt News August 01, 2016
The Flexible Pavement Preservation Treatment Series provides participants with an introduction to the Pavement Preservation Treatment Construction Guide so that they can use it to better familiarize themselves with general information on pavement preservation concepts and techniques.   The...
Asphalt Products July 21, 2016
Ravel Check rejuvenation/preservation liquid is an asphalt-based emulsion with penetrating chemistry and asphalt resins designed with Lock the Rock technology to rejuvenate, preserve and restore asphalt-based pavements. Designed to rejuvenate oxidized raveling roads or apply to preserve new asphalt...
Asphalt Article June 07, 2016
The use of reclaimed asphalt shingles (RAS) in asphalt mixes is on the rise.   A recent survey conducted by the National Asphalt Pavement Association (NAPA) showed that RAS use reached 1.9 million tons nationwide in 2014, an increase of nearly 180% since 2009. While reducing material costs for...
Asphalt Article June 07, 2016
The California Department of Transportation (Caltrans) is working towards going “all in” on intelligent compaction (IC).   IC is viewed as a means to improve contractor quality control on the compaction of asphalt pavements, thus leading to longer-lasting pavements. In addition, as the process...
Asphalt Article June 07, 2016
They did not travel long distances to see the weeping track. In fact, I doubt many racing fans in the New York region saw the strange phenomenon.   Asphalt pavement weeping happens when moisture collects in the sub-base and is pushed to the surface through a crack. Water on a racetrack is bad...
Asphalt News April 11, 2016
Indiana’s East-West Toll Road is set to receive a $200 million makeover and work begins today. According to the Indiana Department of Transportation, it is to be the largest project undertaken by the toll road since its original construction in 1954.   The project’s scale includes the...
Asphalt Article April 08, 2016
When the asphalt surface of U.S. 412 in southern Missouri required pavement preservation to repair cracking and increasing roughness, the project was scoped using diamond grinding as the primary preservation treatment.   Diamond grinding is a pavement preservation technique that improves pavement...
Asphalt Article April 08, 2016
From the semi-arid northern plains to the humid subtropical piney woods, Texas’ sprawling network of roads—nearly 700,000 lane-miles of them—span multiple climates.   The temperature and landscape variances over such a vast area can wreak havoc on roadway maintenance. Many shortcomings arise when...
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